Numerical Problems & Mechanisms

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1.
For A -> B + C (first order), P_0 = 400 mmHg, P_total at t = 500 mmHg. Find P_A.
2.
A second-order reaction: [A]_0 = 0.2 M, after 10 min [A] = 0.1 M. Find k.
3.
A first-order reaction is 93.75% complete in 40 min. The half-life is:
4.
Rate constants at 300 K and 310 K are 2 x 10^-3 and 4 x 10^-3 s^-1. Ea is:
5.
A first-order reaction has k = 6.93 x 10^-3 min^-1. The half-life is:

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